Respiratory Sinus Arrhythmia ECG

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Respiratory Sinus Arrhythmia ECG • Respiratory sinus arrhythmia is a benign phenomenon in which the P-P interval varies with respiration. The rhythm is regularly irregular; the heart rate increases during inspiration and decreases during expiration. The variation between shortest and longest cardiac cycle length (i.e., P-P intervals) is greater than 10% (or 120 ms). The heart rate is between 60 and 100 beats per minute, although it may momentarily extend beyond these limits. It is important to note that this is in fact a sinus rhythm. Every QRS complex is preceded by a P wave, which have a constant morphology and are upright in leads II and III. The PR intervals are also constant. • 📺 Subscribe To My Channel and Get More Great Quizzes and Tutorials • / @med4vl • #cardiology #usmle #ECG • Disclaimer: All the information provided by Medical Education for Visual Learners and associated videos are strictly for informational purposes only. It is not intended as a substitute for medical advice from your health care provider or physician. It should not be used to overrule the advice of a qualified healthcare provider, nor to provide advice for emergency medical treatment. If you think that you or someone that you know may be suffering from a medical condition, then please consult your physician or seek immediate medical attention.

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